56718137 has 32 divisors (see below), whose sum is σ = 71539200. Its totient is φ = 44782080.

The previous prime is 56718121. The next prime is 56718149. The reversal of 56718137 is 73181765.

It is not a de Polignac number, because 56718137 - 2⁴ = 56718121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56718137.

It is not an unprimeable number, because it can be changed into a prime (56718107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413933 + ... + 414069.

It is an arithmetic number, because the mean of its divisors is an integer number (2235600).

Almost surely, 2^56718137 is an apocalyptic number.

It is an amenable number.

56718137 is a deficient number, since it is larger than the sum of its proper divisors (14821063).

56718137 is a wasteful number, since it uses less digits than its factorization.

56718137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 232 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 56718137 is about 7531.1444681403. The cubic root of 56718137 is about 384.2147078530.

The spelling of 56718137 in words is "fifty-six million, seven hundred eighteen thousand, one hundred thirty-seven".